Greenstuf Insulation for Skillion Roofs

GreenStuf Skillion Roof Blanket is specifically designed to provide high thermal performance in restricted spaces.

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The skillion roof, also known as a monopitch roof, is a popular industrial style roof used in residential construction throughout New Zealand. Typically constructed with a single angled plane rising from one side of the dwelling to the other, the design adds size to the interior space while also giving the visual appeal of a modern, raking ceiling.

There are a few things that need consideration when specifying/installing insulation into a skillion roof. The design of a skillion roof presents limited spacing between the sheathing and the ceiling joists which makes this type of roof difficult to insulate with traditional insulation. On top of the already limited space, it is an important requirement to allow for a ventilation gap. The New Zealand Building Code requires a minimum 25mm clearance between the flexible roof underlay or membrane/sarking substrate and insulation for ventilation.

Considering these aspects, Autex developed GreenStuf Skillion Roof Blanket, specifically designed to provide high thermal performance in restricted spaces. Available in a range of performance options, GreenStuf Skillion Roof Blanket is pre-cut to fit standard timber framing widths. More information on this below:

As GreenStuf is manufactured in New Zealand, custom sized segments are supplied on request; a minimum order quantity may apply. GreenStuf Skillion Roof Blanket can also be used in ceilings, mid-floor cavities and as a high-performance underfloor insulation.

The GreenStuf thermal and acoustic polyester insulation range is made using a minimum of 45% previously recycled polyester fibre made from bottle flake and is reusable and recyclable at end of life.

GreenStuf insulation is not affected by moisture and is naturally resistant to insect and vermin attack, exceeding all requirements of the New Zealand Building Code. High performing and long-lasting, GreenStuf insulation will not settle or reduce its performance over time and is backed with a 50-year Product Durability Warranty. Locally made in New Zealand with sustainable, quality materials, GreenStuf is a trusted brand. Build better environments with GreenStuf 100% pure polyester insulation.

Autex Greenstuf has been appraised as thermal and acoustic insulating material in walls, roofs and ceilings of buildings within the following scope:

framed or part-framed domestic and commercial buildings where the insulation remains dry during its serviceable life.

Autex Greenstuf must be installed in accordance with the relevant requirements of NZS 4246, the Technical Literature and Appraisal No.380 (2008), to meet the stated thermal performance rating of the insulation.

In the opinion of BRANZ, Autex Greenstuf if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal No. 380 (2015), will meet or contribute to meeting the following provisions of the New Zealand Building Code:

Clause B2 DURABILITY: Performance B2.3.1(a), not less than 50 years, and B2.3.1(b) 15 years. Autex Greenstuf will meet this requirement.

Autex Greenstuf has been appraised as an Acceptable Solution in terms of New Zealand Building Code Compliance. Autex Greenstuf thermal resistance (R-Value) has been determined by AS/NZS 4859.1 which is an acceptable method.